Metamizole sodium
Based on 2 publication(s) in Google Scholar
Metamizole sodium (Dipyrone) is an orally active cyclooxygenase (COX) inhibitor. Metamizole sodium can inhibit cell proliferation and promote cell apoptosis. Metamizole sodium has anti-inflammatory and antioxidant activities. Metamizole sodium is an antipyretic, analgesic and spasmolytic agent. .Metamizole sodium can be used in research to relieve a variety of pain.
For research use only. We do not sell to patients.
- Purity: 98.0%
- CAS No.: 68-89-3
- Formula: C13H16N3NaO4S
- Molecular Weight:333.34
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications Citing Use of MedChemExpress (MCE) Metamizole sodium
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Biological Activity
COX-3[2]
Metamizole sodium (1 and 10 μM, 24 h) can inhibit osteoblast differentiation and thus reduce its ability to generate new bone mineralized extracellular matrix[2].
Metamizole sodium (1-500 μM, 48 h) can inhibit cell proliferation and promote apoptosis in pancreatic cancer cell lines PaTu 8988 t and Panc-1[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:PaTu 8988 t, Panc-1
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Concentration:1, 10, 100, 250, 500 μM
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Incubation Time:48 hours
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Result:Inhibited proliferation in the PaTu 8988 t cell line with 1–500 μM and with concentrations of 1 μM, 10 μM, 100 μM, and 250 μM in the Panc-1 cell line. Increased the apoptosis rate after 9 h.
Metamizole sodium (250 or 500 mg/kg, orally) can effectively relieve pain and oxidative stress induced by scalpel incision and carrageenan in rats[5].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Wistar rats (270-300 g), with peripheral neuropathic pain[4]
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Dosage:500 mg/kg
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Administration:Intraperitoneal injection, twice a day, for 7 days
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Result:Diminished the expression of pronociceptive interleukins (IL-1beta, IL-6, and IL-18) and chemokines (CCL2, CCL4, and CCL7) in DRG measured 7 days after sciatic nerve injury.
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Animal Model:Pain model in rats [5]
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Dosage:250 or 500 mg/kg
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Administration:p.o.
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Result:Decreased the COX-2 gene expression at 500 mg/kg and increased the MPO gene expression. Reduced MDA levels in the carrageenan paw test and increased tGSH levels.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 68-89-3
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Appearance Solid
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Molecular Weight 333.34
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Formula C13H16N3NaO4S
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Color White to off-white
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SMILES
O=S(CN(C1=C(C)N(C)N(C2=CC=CC=C2)C1=O)C)(O[Na])=O
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Synonyms
Dipyrone; Methamizole sodium
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (2)
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Journal Impact Factor
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Most Recent
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Int J Biol Macromol
Reticuline isomerase AKR1B1 with aldo-keto reductase activity and detoxification function from the insect Blaps rhynchopetera. [Abstract]2026 Mar:352:151224. PMID: 41791543 -
Animal Model Exp Med
Experimental study of a novel mouse model of tibial shaft fracture combined with blunt chest trauma. [Abstract]2025 Apr;8(4):696-706. PMID: 38225728
Solvent & Solubility
DMSO : 200 mg/mL (599.99 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 5 mg/mL (15.00 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 5 mg/mL (15.00 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (281 KB)
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SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Korean - KR (396 KB)
- Portuguese - PT (396 KB)
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Handling Instructions (2659 KB)
References
[1]. DPierre SC, et al. Inhibition of cyclooxygenases by dipyrone. Br J Pharmacol. 2007 Jun;151(4):494-503. [Content Brief]
[2]. De Luna-Bertos E, et al. Therapeutic doses of nonsteroidal anti-inflammatory drugs inhibit osteosarcoma MG-63 osteoblast-like cells maturation, viability, and biomineralization potential. ScientificWorldJournal. 2013 Sep 19;2013:809891. [Content Brief]
[3]. Malsy M, et al. Effects of metamizole, MAA, and paracetamol on proliferation, apoptosis, and necrosis in the pancreatic cancer cell lines PaTu 8988 t and Panc-1. BMC Pharmacol Toxicol. 2017 Dec 6;18(1):77. [Content Brief]
[4]. Zajaczkowska R, et al. Metamizole relieves pain by influencing cytokine levels in dorsal root ganglia in a rat model of neuropathic pain. Pharmacol Rep. 2020 Oct;72(5):1310-1322. [Content Brief]
[5]. Ince I, Aksoy M, et al. A Comparative Investigation of the Analgesic Effects of Metamizole and Paracetamol in Rats. J Invest Surg. 2015 Jun;28(3):173-80. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.9999 mL | 14.9997 mL | 29.9994 mL | 74.9985 mL |
| 5 mM | 0.6000 mL | 2.9999 mL | 5.9999 mL | 14.9997 mL | |
| 10 mM | 0.3000 mL | 1.5000 mL | 2.9999 mL | 7.4999 mL | |
| 15 mM | 0.2000 mL | 1.0000 mL | 2.0000 mL | 4.9999 mL | |
| 20 mM | 0.1500 mL | 0.7500 mL | 1.5000 mL | 3.7499 mL | |
| 25 mM | 0.1200 mL | 0.6000 mL | 1.2000 mL | 2.9999 mL | |
| 30 mM | 0.1000 mL | 0.5000 mL | 1.0000 mL | 2.5000 mL | |
| 40 mM | 0.0750 mL | 0.3750 mL | 0.7500 mL | 1.8750 mL | |
| 50 mM | 0.0600 mL | 0.3000 mL | 0.6000 mL | 1.5000 mL | |
| 60 mM | 0.0500 mL | 0.2500 mL | 0.5000 mL | 1.2500 mL | |
| 80 mM | 0.0375 mL | 0.1875 mL | 0.3750 mL | 0.9375 mL | |
| 100 mM | 0.0300 mL | 0.1500 mL | 0.3000 mL | 0.7500 mL |